org.eclipse.smila.processing.httphandler
Class PipeletsHandler

java.lang.Object
  org.eclipse.smila.http.server.util.ARequestHandler
      org.eclipse.smila.http.server.json.JsonRequestHandler
          org.eclipse.smila.processing.httphandler.PipeletsHandler

All Implemented Interfaces:

HttpHandler, RequestHandler

public class PipeletsHandler
extends JsonRequestHandler

Implements the handling of HTTP requests for reading defined pipelets.

Field Summary

Fields inherited from class org.eclipse.smila.http.server.json.JsonRequestHandler

FACTORY, HEADER_REQUEST_HOST, HTTP_UTILS

Constructor Summary

PipeletsHandler()

Method Summary

protected int	getErrorStatus(java.lang.String method, java.lang.String requestUri, java.lang.Throwable ex) Return a status code for an exception.
protected boolean	isValidMethod(java.lang.String method, java.lang.String requestUri) Checks if the handler allows the HTTP method.
java.lang.Object	process(java.lang.String method, java.lang.String requestUri, Record inputRecord, HttpExchange exchange) process input record and return result object.
void	setPipeletTracker(PipeletTracker tracker) set OSGI service.
void	unsetPipeletTracker(PipeletTracker tracker) unset OSGI service.

Methods inherited from class org.eclipse.smila.http.server.json.JsonRequestHandler

getRequestHost, getSuccessStatus, getSuccessStatus, handle, process, writeErrorResult, writeResultObject, writeSuccessResult

Methods inherited from class org.eclipse.smila.http.server.util.ARequestHandler

activate, getDynamicUriParts, getRootContextPath, getStaticUriParts, getUriPattern, matches, urlDecode

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PipeletsHandler

public PipeletsHandler()

Method Detail

isValidMethod

protected boolean isValidMethod(java.lang.String method,
                                java.lang.String requestUri)

Checks if the handler allows the HTTP method. PipelineListHandler supports GET.

Overrides:

isValidMethod in class JsonRequestHandler

Parameters:

method - HTTP method

requestUri - request URI

Returns:

true if the method can be used for the URI, else false.

process

public java.lang.Object process(java.lang.String method,
                                java.lang.String requestUri,
                                Record inputRecord,
                                HttpExchange exchange)
                         throws java.lang.Exception

process input record and return result object. Override this method in your handler if you need access to HttpExchange object, e.g. to read http header fields

Overrides:

process in class JsonRequestHandler

Parameters:

method - HTTP method

requestUri - request URI.

inputRecord - input record parsed either from request body, if it has content, or from request URI parameters.

exchange - http exchange object, contains e.g. the http header fields

Returns:

result object, may be null. If this is not a Record, you have to provide a JsonRequestHandler.writeResultObject(OutputStream, Object) method, too.

Throws:

java.lang.Exception - any failure during processing.

getErrorStatus

protected int getErrorStatus(java.lang.String method,
                             java.lang.String requestUri,
                             java.lang.Throwable ex)

Description copied from class: JsonRequestHandler

Return a status code for an exception.

Overrides:

getErrorStatus in class JsonRequestHandler

See Also:

HTTP_UTILS#getErrorStatus(String, String, Throwable)

setPipeletTracker

public void setPipeletTracker(PipeletTracker tracker)

set OSGI service.

unsetPipeletTracker

public void unsetPipeletTracker(PipeletTracker tracker)

unset OSGI service.